Step 1: Start with the fraction 3/100.

Step 2: To convert a fraction into a percentage, divide the numerator by the denominator.

3 ÷ 100 = 0.03

Step 3: Multiply the result by 100 to get the percentage.

0.03 × 100 = 3.0%

Final Answer: 3/100 as a percentage is 3.0%.